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METHOD or 'AND APPARATUS FOR NG GLASS BY upnow.

I APPLICATION FILED 1918. 1,31 LQQQE J1 Pen/b);

Patent ed July 29, 1919.

' EMILE ROIRAN T, OF ST. 'OUEN,FRANCE, ASSIGNOR T ARTHUR WILZIN. OF ST. OU'EN,

FRANCE.

METHOD OF AND APPARATUS FOR GATHERING GLASS BY SUCTION.

Specification of Letters Patent. Patented July 29, 1919,

Application filed November 14, 1918. Serial No. 262,591.

To all whom it may concern Be it known that I, EMILE RO'IRANT,'3. citizen of the Republic of France, and resident of St. Ouen, Seine, France, have invented new and useful Improvements in Methods of and Apparatus for Gathering Glass b Suction, of which the following is i a speci cation.

This invention relates to a method of and apparatus for gathering glass" by suction.

In the ordinary methods of gathering glass by suction the introduction of the lower portion of the gathering means or suction mold into the molten glass has the effect (by reason of the metallic contact of the device with the glass) of causin a cooling of the glass, and such an injurious effect that after several successive gathering operations at the same place the glass can no longer be used.

This invention has for object a new method of gathering whereby contact between the gathering means or suction mold and the glass, and' consequently the abovementioned disadvantage, is avoided.

This new method of gathering is characterized by the molten glass passing to the gathering means through an aperture in a block supported with its lower face in the molten glass. The block may comprise a float in the molten glass. This Heat is preferably constructed and arranged 'so that when at rest the upper edge of its opening is a little above the surface of the glass and when in operation in conjunction'with the gathering means it is immersed in the glass to such an extent that the upper edge of its opening is submerged and the glass enters the lower end of the gathering means thereby makinga tight joint between the gathering means and the float.

The accompanying drawing shows, by way of example, one method of carrying out the upper edge of its aperture 4 is slightlyabove the surface of the glass.

lVhen the gathering is carried out, the suction gathering means 3 is brought with its lower end into contact with the cavity 5 in the float 1 so that the lower edge of its orifice coincides with the upper edge of the aperture 4 of the float. As the gathering means 3 continues to be pressed against the floating block, it exerts a downward pres-- sure on the float 1 and submerges it in theglass so that the upper edge of the opening 4 is brought below the surface of the glass which enters the lower portion of the gathering means 3 (Fig. 2).

A vacuum is then produced in the interior of the gathering means 3- and the gathering of the glass is effected.

By means of the device described the external surface of the gathering means does not come into contact with themass of the glass and cannot therefore cause any 111-- jurious cooling thereof.

Moreover, even before the gathering of the glass is commenced by the gathering means 3, the tightness of the joint between the said means and the float l is insured in a perfect manner by the glass which has entered the lower portion of the gathering means as hereinbefore described.

It is also possible to obtain an external joint of glass between the float 1 and the gathering means 3 by depresslng bot-h parts more deeply in the glass so that the float 1s submerged to such an extent that the molten glass fills the cavity 5.

It is to be understood that the above-described device'is given only by way of on ample and that the form, dimensions and details of construction of the float and of the gathering means may be modified.

What I claim is: v

1. Apparatus for gathering glass by suction comprising, in combination, a molten glass container. an apertured block supported with its lower face 111 the molten glass the upper face of the block having a cavity communicating with said aperture,

gathering means for the glass, and means to place the gathering means into contact with the block over the a])erture therein.

2. Apparatus for gathering glass by suetion comprising, in combinatioin a. molten glass container, an apertured block supported with its lower face in the molten glass and having a cavity in its LlpPOI' face about Said aperture, gatheringmeans for the glass, and means to place the gathering means into contaet with the walls of the cavity in the block and over the aperture therein.

8. Apparatus for gathering glass by sue tion, comprising, in combination, a molten glass container,'an apertured Heat in the molten glass, gathering means for the glass, and means to place the gathering means into contact With the float over the aperture therein.

4. Apparatus for gathering glass by suetion comprising, in combination, a molten glass container, an apertured iioat in the molten glass having a cavity in its upper face'ahou said aperture, gathering means for the glass and means to place the gatherinn means into contact with the Walls of the cavity in the float and over the aperture therein.

5. A glass gathering apparatus comprisillg' a molten glass container, a float (lisposed in said container in the molteng'lawg said float having an aperture substantially filled with. the molten. glass, and being provided with a cavity in its upper face oominunieating with said aperture, and a. glass gathering means piovitled with an opening arranged to register with the upper mouth of the aperture, and adapted to be brought into contact with the Willis of the cavity.

6. The herein described method of gathering from a molten glass container having an aperturecl float therein, which consists in applying to theaperture of the Heat a glass-gathering suction device, forcing said float downwardly by means of said suetion device, and ren'ioving the giase thus :ioreerl through the aperture into the suction device by suction.

Dated tl'li, Ql'tl'l (lay of Gotober 1918.

EIVFIILE ROIRANT. 

